Abstract
In recent years, gesture UIs are developed for variety of situations. However, they still have problems of lack in usability. To challenge this problem, we have developed a prototype of gesture UI system using Leap Motion. We have experimented pleasurable sensations occurred from the interaction between gestures and visual feedbacks from both aspect of design and engineering. Thus, we have found out that pointing-oriented UI design, which users point at an operation object in a given time, improves the usability. In our research, we propose a design guideline for improving usability of gesture UIs and which consist of UI design, interaction design, knowledge for developments which we have gained through prototyping processes.
